Title

Rotting Apple

Problem Scenario

Broad Question

How can i prevent a cut apple from turning brown?

Specific Question

Does putting a cut apple in the freezer for a certain amount of time affect the rate it turns brown?

Hypothesis

I can prevent an apple from turning brown by putting it in a freezer.

Graph of Hypothesis

Variables

Independent Variable:

storage method

Dependent Variable:

Freezer

Variables That Need To Be Controlled:

Time (Minutes)

Vocabulary List That Needs Explanation

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General Plan

I will conduct my project at KMS. I will be taking one apple and cutting it in a half,then i will put one half in a freezer at 20 degrees for 10 minutes. then i will put the other half of the apple in the freezer at 10 degrees for 20 minutes. I will decide witch apple has turned more brown by getting the area of the cut apple then figuring out which one is covered in brown.

Potential Problems And Solutions

Safety Or Environmental Concerns

There will only will be one safety concern and that will be that i might cut myself while im cutting the apple in half.

Experimental Design

(add the correct headings from the experimental design page before beginning)
I will do the trial one time. I will colect my data at my house.

Resources and Budget Table

Item	Number needed	Where I will get this	Cost
apple	1	my house	0$
knife	1	school	0$

Detailed Procedure

(1)The first thing i will do is get an apple and cut the apple in half.(2)I will then take one half of the apple and
put the half in the freezer for 20 minutes.(3)Then i will find out the area of the apple and figure out how much of its area is covered in brown. (4)Then I will put the other half of the apple in the freezer for 40 minutes.(5) Then i will take the apple out and figure out how much of the area of the apple is covered in brown. Then I will see if putting a apple in the freezer for a certain amount of time does affect the rate that it turns brown.

Diagram

Photo List

Time Line

3/1 experiment don
3/7 analysis done
3/15 discussion done
3/22 poster done
3/29 science fair!

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Data Table

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Data Analysis

All Raw Data

Graph

Photos

Results

My question was, does putting a cut apple in the freezer for a certain amount of time affect the rate that it turns brown. My hypothesis was,I can prevent an apple from turning brown by putting it in a freezer for a certain amount of time. My procedure was basically I'm going to take an apple ,then cut it in half,then put it in a freezer for certain amount of time and find the area of the apple that turned brown. I was going to find the area of the apple that was covered in brown by multiplying pie by the radius squared. Then repeat the process with the other half of the apple.

Conclusion

After conducting my experiment my conclusion is that putting apples in freezers does affect the rate it witch it turns brown at. So my hypothesis was correct,you can prevent apples from rotting (browning) by putting it in the freezer.

Discussion

To do my experiment I took an apple and cut it in half and put the first half in the freezer for 20 minutes then i took the other half and put it in the freezer for 40 minutes. Then i measured the area of the apple by taking pie and multiplying it by the radius squared. The results turned out to be that, you can prevent an apple from putting it in a freezer.

Benefit to Community and/or Science

My project benefits to the community and science because recent research has found out that apples can prevent spikes in blood sugar through a variety of mechanism.

Background Research

By putting a cut apple in the freezer at 32 degrees it will prevent an apple from turning brown. A study has proved that Arangeh apples brown the least. By putting an apple in water while cutting it,it helps to keep the enzyme from making contact with oxygen so it will stay fresher until ready to be preserved. As i do further research i realize most of the options to keep a cut apple from turning brown are putting it in salt water ,putting it in vinegar,or lemon juice, and no method is putting it in a freezer.

References

"What Natural Preservatives Will Prevent Apples from Rotting?" WikiAnswers. Answers, July-Aug. 2011. Web. 26 Mar. 2013

Abstract

In my experiment, I was seeing if i could prevent an apple from turning brown by putting it in a freezer. My hypothesis stated that you can prevent an apple from rotting by putting it in a freezer. I did my experiment at home. It took about one hour to complete the experiment. After I was done i put all my data on my wiki page. I did my experiment by putting a half of an apple in the freezer for 20min, i put the other half in the freezer for 40 minutes. When i took them out of the freezer there was no brown spot at all. It turns out my hypothesis was correct.